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Expression (Complex Math 1.0 API)
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oe.math.complex</FONT>
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Class Expression</H2>
<PRE>
<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
  <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>oe.math.complex.Expression</B>
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<DL>
<DT><PRE>public final class <B>Expression</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL>
</PRE>

<P>
Represents a complex arithmetic expression.
 <p/>
 Instances of this class are immutable.
<P>

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<CODE>static&nbsp;class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.Simplifications.html" title="enum in oe.math.complex">Expression.Simplifications</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Defines possible expression simplifications.</TD>
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<B>Method Summary</B></FONT></TH>
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<CODE>&nbsp;<A HREF="../../../oe/math/complex/Complex.html" title="class in oe.math.complex">Complex</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#calculate(oe.math.complex.CalculationContext)">calculate</A></B>(<A HREF="../../../oe/math/complex/CalculationContext.html" title="class in oe.math.complex">CalculationContext</A>&nbsp;context)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates this expression and returns the result.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#equals(java.lang.Object)">equals</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;obj)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#fromPostfixString(java.lang.String)">fromPostfixString</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;source)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a complex arithmetic expression represented by the argument string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#fromString(java.lang.String)">fromString</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;source)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a complex arithmetic expression represented by the argument string.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#hashCode()">hashCode</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../../oe/math/complex/ExpressionBuilder.html" title="class in oe.math.complex">ExpressionBuilder</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#postfix()">postfix</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a new postfix expression builder.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#simplify()">simplify</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Simplifies this expression by replacing some component sequences with their compact counterparts.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#simplify(java.util.Set)">simplify</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</A>&lt;<A HREF="../../../oe/math/complex/Expression.Simplifications.html" title="enum in oe.math.complex">Expression.Simplifications</A>&gt;&nbsp;simplifications)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Simplifies this expression by replacing some component sequences with their compact counterparts.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#toPostfixString()">toPostfixString</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a string representation of this expression in the postfix form.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../oe/math/complex/Expression.html#toString()">toString</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a string representation of this expression in the infix form.</TD>
</TR>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
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<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
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<A NAME="postfix()"><!-- --></A><H3>
postfix</H3>
<PRE>
public static <A HREF="../../../oe/math/complex/ExpressionBuilder.html" title="class in oe.math.complex">ExpressionBuilder</A> <B>postfix</B>()</PRE>
<DL>
<DD>Returns a new postfix expression builder.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a new builder</DL>
</DD>
</DL>
<HR>

<A NAME="fromString(java.lang.String)"><!-- --></A><H3>
fromString</H3>
<PRE>
public static <A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A> <B>fromString</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;source)</PRE>
<DL>
<DD>Returns a complex arithmetic expression represented by the argument string.
 <p/>
 Leading and trailing whitespace characters in <code>source</code> are ignored. Whitespace is removed as if by the
 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true#trim()" title="class or interface in java.lang"><CODE>String.trim()</CODE></A> method. The rest of <code>source</code> should constitute an infix expression as produced by the
 <A HREF="../../../oe/math/complex/Expression.html#toString()"><CODE>toString()</CODE></A> method.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>source</CODE> - the string to be parsed
<DT><B>Returns:</B><DD>an expression represented by the argument string
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>source</code> is <code>null</code>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>source</code> does not contain a parsable infix expression<DT><B>See Also:</B><DD><A HREF="../../../oe/math/complex/Expression.html#toString()"><CODE>toString()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="fromPostfixString(java.lang.String)"><!-- --></A><H3>
fromPostfixString</H3>
<PRE>
public static <A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A> <B>fromPostfixString</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;source)</PRE>
<DL>
<DD>Returns a complex arithmetic expression represented by the argument string.
 <p/>
 Leading and trailing whitespace characters in <code>source</code> are ignored. Whitespace is removed as if by the
 <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true#trim()" title="class or interface in java.lang"><CODE>String.trim()</CODE></A> method. The rest of <code>source</code> should constitute a postfix expression as produced by
 the <A HREF="../../../oe/math/complex/Expression.html#toPostfixString()"><CODE>toPostfixString()</CODE></A> method.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>source</CODE> - the string to be parsed
<DT><B>Returns:</B><DD>an expression represented by the argument string
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>source</code> is <code>null</code>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>source</code> does not contain a parsable postfix expression<DT><B>See Also:</B><DD><A HREF="../../../oe/math/complex/Expression.html#toPostfixString()"><CODE>toPostfixString()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="simplify()"><!-- --></A><H3>
simplify</H3>
<PRE>
public <A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A> <B>simplify</B>()</PRE>
<DL>
<DD>Simplifies this expression by replacing some component sequences with their compact counterparts.
 <p/>
 This method calls <A HREF="../../../oe/math/complex/Expression.html#simplify(java.util.Set)"><CODE>simplify(Set)</CODE></A> with all possible simplifications requested.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the simplified expression</DL>
</DD>
</DL>
<HR>

<A NAME="simplify(java.util.Set)"><!-- --></A><H3>
simplify</H3>
<PRE>
public <A HREF="../../../oe/math/complex/Expression.html" title="class in oe.math.complex">Expression</A> <B>simplify</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</A>&lt;<A HREF="../../../oe/math/complex/Expression.Simplifications.html" title="enum in oe.math.complex">Expression.Simplifications</A>&gt;&nbsp;simplifications)</PRE>
<DL>
<DD>Simplifies this expression by replacing some component sequences with their compact counterparts.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>simplifications</CODE> - the simplifications to perform
<DT><B>Returns:</B><DD>the simplified expression
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>simplifications</code> is <code>null</code></DL>
</DD>
</DL>
<HR>

<A NAME="calculate(oe.math.complex.CalculationContext)"><!-- --></A><H3>
calculate</H3>
<PRE>
public <A HREF="../../../oe/math/complex/Complex.html" title="class in oe.math.complex">Complex</A> <B>calculate</B>(<A HREF="../../../oe/math/complex/CalculationContext.html" title="class in oe.math.complex">CalculationContext</A>&nbsp;context)</PRE>
<DL>
<DD>Calculates this expression and returns the result.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>context</CODE> - the calculation context that provides variable values
<DT><B>Returns:</B><DD>the result of the calculation
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if <code>context</code> is <code>null</code>
<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if expression contains a variable whose value is not defined in the <code>context</code></DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>&nbsp;obj)</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Returns a string representation of this expression in the infix form.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A></CODE> in class <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the string representation of this expression in the infix form<DT><B>See Also:</B><DD><A HREF="../../../oe/math/complex/Expression.html#fromString(java.lang.String)"><CODE>fromString(String)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="toPostfixString()"><!-- --></A><H3>
toPostfixString</H3>
<PRE>
public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>toPostfixString</B>()</PRE>
<DL>
<DD>Returns a string representation of this expression in the postfix form. The expression postfix form is a sequence
 of symbols that represent expression components separated by the single space character.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the string representation of this expression in the postfix form<DT><B>See Also:</B><DD><A HREF="../../../oe/math/complex/Expression.html#fromPostfixString(java.lang.String)"><CODE>fromPostfixString(String)</CODE></A></DL>
</DD>
</DL>
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